Unit Test — Cumulative exam Answers
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21
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two
T
The equation for the line of best fit is not a good approximation for the data because the points have a curved pattern.T
The equation for the line of best fit is a good approximation for the data because the points are random, having no pattern.T
The residual plot has a linear pattern.T
The points of the residual plot are spread evenly above and below the x-axis.T
The residual plot has the pattern of a curve.22
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Shawn and Dorian rented bikes from two different rental shops. The prices in dollars, y, of renting bikes from the two different shops for x hours is shown. Shop Shawn used: y = 10 + 3.5xShop Dorian used: y = 6x If Shawn and Dorian each rented bikes for the same number of hours and each paid the same price, how much did each pay for the rental? $
Answer not available
24
Which graph represents the solution to the compound inequality?4x + 8 < –16 or 4x + 8 ≥ 4
A
A number line with an open circle at negative 6 with a bold line pointing to the right ending at the point at negative 1.
B
A number line with a point at negative 6 with a bold line pointing to the right ending at the open circle at negative 1.
C
A number line with an open circle at negative 6 with a bold line pointing to the left. A point at negative 1 with a bold line pointing to the right.
D
A number line with a point at negative 6 with a bold line pointing to the left. An open circle at negative 1 with a bold line pointing to the right.
25
Lukas graphed the system of equations shown.2x + 3y = 2y = x + 3What is the solution to the system of equations?
A
(–2, 2)B
(0, 0.67)C
(0, 3)D
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